Junior Database Administrator

Technological Pole Almada Until 8/21/2026 0+ years exp First posted June 6, 2026 Last posted June 6, 2026
Job description

Crossjoin Solutions, founded in 2009, is a Portuguese IT company serving over 30 clients across Europe, Latin America, and North America. Through our services, we support tens of millions of consumers in numerous countries worldwide..

We provide consulting services across a broad range of sectors reliant on information systems, including banking, insurance, healthcare, automotive, finance, and telecommunications. Our expertise covers end-to-end performance optimization, enterprise testing, major incident troubleshooting and resolution, full-stack architecture advisory, continuous integration, deployment acceleration, and infrastructure managed services.

You will be integrated in our Academy!

At this Academy, you will be challenged with intensive training, both theoretical and in realistic labs, so you can be ready for Crossjoin's projects. Here, you’ll not only sharpen your technical abilities but also refine your soft skills, preparing you to face real-world challenges.

Requirements:

  • Bachelor’s or Master’s degree in Computer Science or a related field

  • No prior professional experience required

  • Strong resilience in problem-solving and performing under pressure

  • High level of autonomy and sense of responsibility

  • Excellent organizational and time management skills

  • Effective communication skills

Responsabilities:

  • Install, configure, upgrade, maintain and Administrate open-source databases (PostgreSQL, MySQL/MariaDB, ElasticSearch, MongoDB, etc.).

  • Ensure high availability, backups, replication, and disaster recovery.

  • Monitor performance, tune queries.

  • Apply security patches, manage access, and enforce data protection.

  • Automate routine tasks and maintain monitoring/alerting systems.

  • Document environments, procedures, and best practices.

  • Evaluate and implement improvements for reliability, scalability, and cost.

We offer:

  • Health Insurance (also available for your immediate family)

  • Crosser Assistance Program (support in psychology, psychosocial, financial, legal, and nutrition matters)

  • Structured Individual Development Plan (IDP)

  • Transparent company-wide Career Plan

  • Monthly gym subscription

  • Regular team-building events

Ready to kick off your career as a Junior Database Administrator? Join us at Crossjoin Solutions and become part of an ambitious and supportive team!

With the submission of your application you authorise the treatment and storage of your personal data within Crossjoin Solutions, Lda database for this recruitment process and/or other future opportunities.

About this role

Summary

Maintain, monitor, and troubleshoot open-source databases ensuring high availability and security.

Job title

Junior Database Administrator

Experience level

entry level

Minimum experience

0+ years exp

Industry

software

Location requirements

Almada, Portugal, on-site, no remote work

Salary

Not specified

Management role

No

Skills & keywords

Required skills

PostgreSQLMySQLMongoDBElasticSearchbackup and recovery

Preferred skills

None specified

Specializations

database administrationopen source databasesperformance tuningbackup and recoverysecurity
Locations

Structured locations inferred from the posting.

Almada, Portugal

On-site City